.btn{
    background-color: #409EFF;
    border: unset;
    outline: none;
    color: white;
    font-weight: bold;
    padding: 10px 20px;
    letter-spacing: 2px;
    border-radius: 4px;
    box-shadow: 0 0 2px #337ecc;
    cursor: pointer;
    margin: 2px;
}
.btn:hover{
    background-color: #a0cfff;
}
.btn:active{
    background-color: #337ecc;
}